Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session G45: Energy - Battery Electrolytes
11:30 AM–2:06 PM,
Tuesday, March 7, 2023
Room: Room 315
Sponsoring
Unit:
GERA
Chair: Zeeshan Ahmad, Texas Tech University
Abstract: G45.00002 : The Role of Anti-Phase Domains in Enhancing Ionic Conductivity of Na-based Solid-State Battery Electrolytes*
11:42 AM–11:54 AM
Presenter:
Boyan K Stoychev
(University of California, San Diego)
Author:
Boyan K Stoychev
(University of California, San Diego)
We used Bragg Coherent Diffractive Imaging (CDI) on several NYZCx stoichiometries, which allowed us to directly image electrolyte nanocrystals in 3D. Our data showed an abundance of anti-phase domains in these materials, and further analysis revealed that higher density of anti-phase domain boundaries correlated with an increase in ionic conductivity. These findings demonstrate the importance of nanoscale defects on the performance of battery materials, and call for defect engineering as a pathway for progress in the field.
*This work was supported by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences, under contract DE-SC0001805. This research used resources of the Advanced Photon Source, a U.S. DOE Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under contract no. DE-AC02-06CH11357
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